Segment Information - Summary of Company's Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Revenue	$ 20,691	$ 23,083	$ 63,382	$ 75,435
Income (loss) from operations	(6,534)	(2,439)	(15,069)	(12,074)
Operating Segments | Oil and Gas Markets
Segment Reporting Information [Line Items]
Revenue	9,517	12,649	34,317	41,544
Income (loss) from operations	(3,695)	(1,807)	(6,209)	(13,258)
Operating Segments | Adjacent Markets
Segment Reporting Information [Line Items]
Revenue	10,938	9,373	28,312	23,868
Income (loss) from operations	1,841	1,997	4,341	4,819
Operating Segments | Emerging Markets
Segment Reporting Information [Line Items]
Revenue	135	1,061	571	10,023
Income (loss) from operations	(1,405)	(4)	(3,609)	5,286
Corporate
Segment Reporting Information [Line Items]
Revenue	101		182
Income (loss) from operations	$ (3,275)	$ (2,625)	$ (9,592)	$ (8,921)